Note 13 - Segment and Geographical Information (Details) - Revenues by Product Group - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue from External Customer [Line Items]
Revenue		$ 819,567	$ 775,615	$ 616,016
IME and Other Related Services [Member]
Revenue from External Customer [Line Items]
Revenue	[1]	695,382	674,229	567,070
Peer and Bill Review Medicare Compliance and Case Management [Member]
Revenue from External Customer [Line Items]
Revenue	[1]	$ 124,185	$ 101,386	$ 48,946

[1] Includes the results of certain of the Company's service centers acquired whose revenues are generated substantially through the indicated product group. Outside of this presentation, other product groups are not tracked within the Company's financial systems. Additionally, other related services, which include any Medicare compliance services and case management services completed at the Company's historic service centers in the periods presented, are not separately captured within the Company's financial systems and have been included with IME services in the above presentation as separate presentation is not practicable. With the Company's acquisition of Gould & Lamb in February 2014 and Ability Services Network and MedAllocators in June 2014, Medicare compliance services and case management services have been added to the presentation above. None of the individual services within the peer and bill reviews, Medicare compliance services and case management services category above represent more than 10% of consolidated revenues.